Honda City overheating

Salam,
The latest problem in my car Since the last 3 weeks the car tends to overheat reduce water and water boils in the reservoir after a drive of more than 10 mins. the red light starts blinking and i stop the car at the nearest fuel station or commercial area which in Karachi isnt very far
The car has no coolant (tap water) T stat valve is installed and fans are direct and A/C wasn't used
Now i showed it to a mechanic here in my area he said that the pipe which goes from the water pump to engine block is leaking and needs replacement he touched the lower part of the pipe (where it goes into the engine block) and water was on his finger i checked it too but yesterday when i went to plaza to get the pipe replaced the mechanic said that your fan isnt working (1 out of 2 was working) because its shroud was broken and the motor was bad so replaced the entire thing with a kabli one we went from Saddar to nursery to drop off the person I went with and after going like a few meters ahead the stupid red light started blinking and water was again boiling
After getting a replacement fan for 4k im really pissed apparently their is no leakage but still the water the water level decreases and the starts boiling
what could be the problem ? And because the stupid car doesnt have a heat guage im not sure about the temperature

bought a city 2006 car 15 days back, its fan was direct, i made it to auto on saturday. gone on a long ride with the family suddenly RED heating light appears, stop the car at the corner and side reserve bottle was heating like hell, water and flame coming from it, after some times with the help of a cloth opened the radiator cap, water flows like shower. car is getting off. so i kept the excelator and a guy started filling the water, water is flowing like shower, one thing notice that fan is not working so i on the AC and let the fan run. later want to the mechanin and made the fan direct again. its working fine now.

Now im worried is that the city car is an electronic car and its system is auto then why we need to alter to direct. secondly what you people say, is the gaskit is the main cause or radiator. or should i kept the fan on direct.

First of all auto fan is recommended for any car. I recently bought the civic 00, service the radiator which is good condition, fill the radiator full with coolant and make the radiator fan auto by putting honda genuine thermostat and still with ac there is no heating problem in my car.

Take the car to honda 3s dealer for checking the thermostat and radiator inspections and other factors such like fan speed etc. If the radiator is in good condition then service the radiator and fill the radiator fully with honda long life pre-diluted coolant and let the fan to be auto which is highly recommended.

Have u checked its auto fan? radiator cap, any leak from hose pipes, head gasket condition......

both fan are direct its been an year like that
Nope didnt try a new cap but tried the original and the one which came with the radiator
Hose pipes were replaced with new ones
Not sure about the head gasket

First of all auto fan is recommended for any car. I recently bought the civic 00, service the radiator which is good condition, fill the radiator full with coolant and make the radiator fan auto by putting honda genuine thermostat and still with ac there is no heating problem in my car.

Take the car to honda 3s dealer for checking the thermostat and radiator inspections and other factors such like fan speed etc. If the radiator is in good condition then service the radiator and fill the radiator fully with honda long life pre-diluted coolant and let the fan to be auto which is highly recommended.

Thanks for the info and help. i will do the radiator cleaning on saturday and find out its condition as well. i will ask my mechanic to check the thermostat, if needed i will replace it. and i need my car on AUTO fan. i will do that.

What do u mean by radiator is small Has the mechanic gone NUTS! Radiator is obviously the standard size of fitting....

Thats what I told him this is an OEM spec radiator but the core was a bit bigger then the original one
Now I got a new cap didnt work
Mechanic removed the T-stat we tried the car but eventually it started to heat up will get a new one tomo.
Now the only two things are left i.e the head gasket and water pump
Since the guy was short of space and choota's so will get them replaced tomo.

Water pump either works fine or leaks. If it doesn't leak, probability is that it's fine. I don't know how the gasket is being called the culprit here. You don't have any symptoms of head gasket leakage, apart from the over heating and there can be a million reasons for it.